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Method
Rel. frost
Last spring frost (0°C) 13 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 103 days 13 Jun – 24 Sep
Probability that frost is over

90% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
25 Apr – 9 May
12 Jun
5-7 wk
13 Jun
17 Jul
0 wk
14 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 May
24 Jun
4-6 wk
13 Jun
22 Jul
0 wk
14 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Apr – 9 May
7 Jun
5-7 wk
13 Jun
12 Jul
0 wk
13 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
22 – 29 May
3-4 wk
19 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
22 – 29 May
4 Jun
4-5 wk
26 Jun
2 Jul
2 wk after
8 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
24 Jun – 1 Jul
3-4 wk
22 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
21 Mar – 18 Apr
28 Mar
8-12 wk
13 Jun
0 wk
13 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
10 Jun
11 Jun
0 wk
10 Jun
0 wk
Maize
Zea mays
Season too short
16 – 23 May
3-4 wk
13 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 May
1 Jul
3-4 wk
15 Jun
22 Jul
0 wk
26 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 Jun
2 Jul
0 wk
13 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Apr – 9 May
7 Jun
5-7 wk
13 Jun
12 Jul
0 wk
13 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
Fleece
3 – 17 May
19 May
4-6 wk
14 Jun
16 Jun
0 wk
14 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Apr – 9 May
17 Jun
5-7 wk
13 Jun
22 Jul
0 wk
14 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
22 – 29 May
3-4 wk
19 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
16 – 23 May
31 May
3-4 wk
13 Jun
21 Jun
0 wk
19 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 May
19 Jun
4-6 wk
13 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 May
6 Jul
3-4 wk
13 Jun
27 Jul
0 wk
14 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 May
19 Jun
4-6 wk
13 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
10 – 24 May
29 May
2-4 wk
7 Jun
12 Jun
1 wk before
7 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
10 Jun
11 Jun
0 wk
10 Jun
0 wk
Spinach
Spinacia oleracea
16 – 23 May
21 Jul
3-4 wk
13 Jun
11 Aug
0 wk
10 Jun
1 Aug
0 wk
Sweet potato
Ipomoea batatas
8 – 22 Jul
4-6 wk
19 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
16 – 30 May
2-4 wk
13 Jun
0 wk
26 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 May
19 Jun
4-6 wk
13 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 May
21 Jun
3-4 wk
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Season too short
8 – 22 May
4-6 wk
19 Jun
1 wk after
Lemon balm
Melissa officinalis
4 – 18 Apr
17 May
8-10 wk
13 Jun
12 Jul
0 wk
8 Jul
4 wk after
Dill
Anethum graveolens
14 Jun
22 Jul
0 wk
Wild chives
Allium schoenoprasum
18 Apr – 2 May
31 May
6-8 wk
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
21 Mar – 18 Apr
17 May
8-12 wk
13 Jun
12 Jul
0 wk
8 Jul
4 wk after
Coriander
Coriandrum sativum
13 Jun
11 Aug
0 wk
26 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
6 – 20 Apr
2 May
8-10 wk
15 Jun
27 Jun
0 wk
Common thyme
Thymus vulgaris
4 – 18 Apr
7 May
8-10 wk
13 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
18 Apr – 2 May
21 May
6-8 wk
13 Jun
2 Jul
0 wk
8 Jul
4 wk after
Parsley
Petroselinum crispum
18 Apr – 2 May
21 May
6-8 wk
13 Jun
2 Jul
0 wk
14 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
9 Mar – 6 Apr
3 Apr
10-14 wk
15 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Season too short
22 – 29 May
3-4 wk
19 Jun
1 wk after
Cornflower
Centaurea cyanus
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
4 – 18 Apr
14 Apr
8-10 wk
13 Jun
0 wk
Sweet William
Dianthus barbatus
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
23 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
18 Apr – 2 May
28 Apr
6-8 wk
13 Jun
0 wk
15 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
20 Apr – 4 May
26 Apr
6-8 wk
15 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
24 Apr – 22 May
21 May
4-8 wk
19 Jun
1 wk after
19 Jun
1 wk after
Foxglove
Digitalis purpurea
4 – 18 Apr
8-10 wk
13 Jun
0 wk
26 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
27 Mar – 24 Apr
7 Jun
8-12 wk
19 Jun
2 Aug
1 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 May
4-6 wk
26 Jun
2 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Apr
17 Apr
8-10 wk
15 Jun
0 wk
Love in a mist
Nigella damascena
13 Jun
27 Jun
0 wk
14 Jun
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
18 Apr – 2 May
18 Apr
6-8 wk
13 Jun
0 wk
15 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
23 Mar – 20 Apr
17 Apr
8-12 wk
15 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
24 Apr – 8 May
6-8 wk
19 Jun
1 wk after
Corn poppy
Papaver rhoeas
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
21 Mar – 18 Apr
7 May
8-12 wk
13 Jun
2 Jul
0 wk
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
10 – 24 Apr
24 Apr
8-10 wk
19 Jun
19 Jun
1 wk after
Sweet pea
Lathyrus odoratus
18 Apr – 9 May
28 May
5-8 wk
13 Jun
2 Jul
0 wk
Stock
Matthiola incana
18 Apr – 2 May
31 May
6-8 wk
13 Jun
12 Jul
0 wk
26 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
18 Apr – 2 May
1 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
8 – 22 May
4-6 wk
19 Jun
1 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Apr
17 May
8-10 wk
13 Jun
12 Jul
0 wk
23 Jun
2 Jul
1 wk after
Petunia
Petunia
Greenhouse
21 Mar – 18 Apr
14 Apr
8-12 wk
13 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
20 Apr – 4 May
1 May
6-8 wk
15 Jun
0 wk
26 Jul
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
2 – 16 May
20 May
4-6 wk
13 Jun
17 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
15 – 29 May
3-5 wk
19 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
8 – 22 May
10 May
4-6 wk
19 Jun
1 wk after
8 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
3 Apr – 1 May
8-12 wk
26 Jun
2 wk after
Bee balm
Monarda didyma
21 Mar – 18 Apr
17 Apr
8-12 wk
13 Jun
0 wk
8 Jul
4 wk after
Yarrow
Achillea millefolium
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Safflower
Carthamus tinctorius
13 Jun
0 wk
14 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
18 Apr – 2 May
21 May
6-8 wk
13 Jun
2 Jul
0 wk
28 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
2 – 16 May
4 Jun
4-6 wk
13 Jun
2 Jul
0 wk
26 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
27 Mar – 10 Apr
10-12 wk
19 Jun
1 wk after
Sunflower
Helianthus annuus
29 May – 5 Jun
11 Jun
3-4 wk
26 Jun
2 Jul
2 wk after
8 Jul
4 wk after
China aster
Callistephus chinensis
1 – 15 May
31 May
6-8 wk
26 Jun
12 Jul
2 wk after
26 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
18 Apr – 2 May
23 Apr
6-8 wk
13 Jun
0 wk
8 Jul
4 wk after
Hollyhock
Alcea rosea
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Alpine delphinium
Delphinium elatum
21 Mar – 18 Apr
17 Apr
8-12 wk
13 Jun
0 wk
8 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
20 Apr – 4 May
21 May
6-8 wk
15 Jun
2 Jul
0 wk
26 Jul
6 wk after
Wood sage
Salvia nemorosa
4 – 18 Apr
7 Apr
8-10 wk
13 Jun
0 wk
8 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
10 Apr – 8 May
6-10 wk
19 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
17 Apr – 1 May
4 May
8-10 wk
26 Jun
29 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
18 Apr – 2 May
1 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after